Basic Info.
Model NO.
BWM-40
Coordinate Boring Machine Type
Horizontal Type
Tool Type
Crude Knife
Controlling Mode
CNC
Precision
High Precision
Automatic Grade
Automatic
Certification
CE, ISO 9001
Condition
New
Transport Package
Wooden Box
Specification
730mm*430mm*500mm
Trademark
DIG-DOG
Origin
China
HS Code
8459490000
Production Capacity
50000pieces/Year
Packaging & Delivery
Package Size
73.00cm * 43.00cm * 50.00cm
Package Gross Weight
100.000kg
Product Description
PORTABLE LINE BORING MACHINE The DIG-DOG Portable Boring Machine is an innovative solution, meticulously designed for the on-site maintenance of construction machinery. Primarily utilized for machining small pipe inner holes and concentric spacing holes, this versatile equipment significantly reduces maintenance costs while enhancing operational efficiency. It is widely acclaimed in sectors involving excavators, cranes, and loaders.

Main Application: Perfect for machining revolving holes, articulated holes, and shaft pin holes on various engineering machinery structures post-repair welding. Additionally, it excels at installing hole sleeves after reaming. Ideal for the repair and processing of concentric holes, this machine ensures one-time positioning and processing of multiple holes on excavators, loaders, presses, cranes, and more, guaranteeing the coaxiality of the holes.


TYPE | BM-40 | BM-50 | BWM-50S | BWM-50P | BM-60 | BM-60S |
Main motor | 1.5KW Brushless DC | 1.5KW Brushless DC | 3KW Vertical servo | 3KW Vertical servo | 2KW DC servo | 2KW DC servo |
Power of cutter moving motor | 120W | 120W | 120W | 120W | 120W | 120W |
Main motor output speed | 125r/min | 125r/min | 0-300r/min | 0-300r/min | 100r/min | 80r/min |
Motor speed control | CVT | CVT | CVT | CVT | CVT | CVT |
Feed way | Tiptronic | Tiptronic | Tiptronic | Tiptronic | Tiptronic | Tiptronic |
The boring bar diameter | 40mm | 50mm | 50mm | 50mm | 60mm | 60mm |
Scope of boring | 45-200mm | 55mm-260mm | 55mm-260mm | 55mm-260mm | 65--500mm | 65-500mm |
Feed stroke | 380mm | 380mm | 200mm | 200mm | 420mm | 740mm |
Maximum cutting capacity on one side | 2-3mm | 2-3mm | 3mm | 2mm | 2-3mm | 2-3mm |
Machining roundness | 0.03mm | 0.03mm | 0.02mm | 0.03mm | 0.03mm | 0.05mm |
roughness | 3.2um | 3.2 | 3.2 | 3.2 | 3.2um | 3.2um |
Installation | Weld | Weld | Weld | Weld | Weld | Weld |
Hole range | * | * | 55-230mm | 55-230mm | * | * |
Single side welding thickness | * | * | 3-4mm | 2-3mm | * | * |
Wire type | * | * | 1.0 | 1.0 | * | * |









What size of line boring machine should I choose?
With a range of line boring machines available, selecting the right size is crucial. No single machine can precisely cover all diameters, so it's essential to consider the specific types of jobs you'll be performing.What boring bar length should I specify?
Choosing the correct boring bar length depends largely on the nature of your projects. Note that for smaller diameter boring bars, longer bars pose a greater risk of sagging.What are the lead times for line boring machines?
Lead times vary based on machine size and stock availability. Planning ahead is essential, as it can take several weeks from payment receipt to machine delivery. Each machine package is custom-made from a range of available options.Can DIG-DOG supply a machine in my area?
Yes, our portable boring machines are exported worldwide, ensuring global reach and accessibility.What maintenance is needed?
With proper care, the line boring machine promises years of reliable use, consistently delivering precise results. Routine maintenance involves simple cleaning, debris removal, and regular oiling.


